出错信息：
proc PARSE=FULL DBAccess.pc
Copyright (c) 1982, 2002, Oracle Corporation. All rights reserved.
System default option values taken from: /home/oracle/app/product/9.2.0/precomp/admin/pcscfg.cfg
Error at line 34, column 11 in file /usr/include/stdio.h
# include <stddef.h>
..........1
PCC-S-02015, unable to open include file
Error at line 31, column 10 in file /usr/include/bits/types.h
#include <stddef.h>
.........1
PCC-S-02015, unable to open include file
Error at line 14, column 10 in file /usr/include/_G_config.h
#include <stddef.h>
.........1
PCC-S-02015, unable to open include file
Error at line 48, column 10 in file /usr/include/wchar.h
#include <stddef.h>
.........1
PCC-S-02015, unable to open include file
Error at line 48, column 10 in file /usr/include/wchar.h
#include <stddef.h>
.........1
PCC-S-02015, unable to open include file
Error at line 31, column 10 in file /usr/include/gconv.h
#include <stddef.h>
.........1
PCC-S-02015, unable to open include file
Syntax error at line 72, column 26, file /usr/include/gconv.h:
Error at line 72, column 26 in file /usr/include/gconv.h
unsigned char **, size_t *, int, int);
.........................1
PCC-S-02201, Encountered the symbol "size_t" when expecting one of the following
:
... auto, char, const, double, enum, float, int, long,
ulong_varchar, OCIBFileLocator OCIBlobLocator,
OCIClobLocator, OCIDateTime, OCIExtProcContext, OCIInterval,
OCIRowid, OCIDate, OCINumber, OCIRaw, OCIString, register,
short, signed, sql_context, sql_cursor, static, struct,
union, unsigned, utext, uvarchar, varchar, void, volatile,
a typedef name, exec oracle, exec oracle begin, exec,
exec sql, exec sql begin, exec sql type, exec sql var,
The symbol "enum," was substituted for "size_t" to continue.
Syntax error at line 88, column 7, file /usr/include/gconv.h:
Error at line 88, column 7 in file /usr/include/gconv.h
...........
出现以上异常的原因是proc编译时找不到相应的lib文件，解决办法是：
1、vim $ORACLE_HOME/precomp/admin/pcscfg.cfg
在pcscft.cfg文件中添加对应的include目录。
找出相应的include目录办法如下：
find /usr -name stddef.h 可以找到它的准确位置。找出stddef.h的真实路径，取gcc 目录入的includ路径，如：
/usr/lib/gcc/i386-redhat-linux/4.1.1/include/stddef.h